Infini Resources has intersected widespread high-grade uranium and polymetallic mineralisation in its Phase 2 drilling at Portland Creek, Newfoundland, validating its exploration model and hinting at a district-scale hydrothermal system.
- Widespread elevated uranium readings in drillhole PCDD25-012
- High-grade uraninite up to 1.2% uranium detected via pXRF
- Polymetallic mineralisation including molybdenum and titanium identified
- Phase 2 drilling ongoing with plans to expand beyond initial 2,500m program
- Laboratory assay results expected in Q4 2025 to confirm grades
Breakthrough Uranium Intersections at Portland Creek
Infini Resources Limited (ASX – I88) has reported a significant milestone in its exploration efforts at the Portland Creek Uranium Project in Newfoundland, Canada. The company’s Phase 2 diamond drilling program has intersected extensive zones of elevated uranium mineralisation, notably in drillhole PCDD25-012, which revealed widespread uranium concentrations ranging from 1,000 ppm up to 1.2% uranium (12,000 ppm) in uraninite blebs. These findings validate Infini’s refined structural and hydrothermal alteration model, suggesting a robust uranium system hosted within intensely fractured and altered granitic rocks.
A Polymetallic Hydrothermal System Emerges
Beyond uranium, the drilling program has uncovered evidence of a district-scale polymetallic system. Drillhole PCDD25-009A intersected a high-grade molybdenum zone grading 2.38% Mo within a 4-meter albitised granite interval, accompanied by pathfinder elements such as lead, zinc, copper, and titanium. Additional holes have recorded elevated titanium and molybdenum values, alongside pervasive hydrothermal alteration and brecciation. This polymetallic signature points to a fertile magmatic-hydrothermal environment capable of hosting multiple critical metals, which could enhance the project’s strategic value amid the global energy transition.
Exploration Model and Structural Controls Confirmed
The drilling results confirm that the prominent east-west and northeast-trending fault corridors at Portland Creek act as principal fluid conduits, facilitating uranium and associated mineralisation. The intensely fractured granites exhibit strong alteration assemblages including albite, hematite, chlorite, and sericite, consistent with hydrothermal fluid activity. The proximity of the project to the historic Daniel’s Harbour zinc mine, just 10 km away, provides a compelling analogue for large-scale hydrothermal mineralisation in the district.
Next Steps and Market Implications
With only two of twelve priority targets partially tested so far, Infini plans to expand its Phase 2 drilling program beyond the initial 2,500 meters to systematically test additional high-priority uranium anomalies along a 6-kilometer corridor. Laboratory assay results, expected in the current quarter, will be critical to confirming the preliminary pXRF findings and defining the economic potential of the mineralisation. CEO Rohan Bone highlighted the transformative nature of these early results, underscoring the project’s growing scale and potential to become a major polymetallic uranium discovery.
As the global demand for uranium and critical minerals intensifies, Infini’s Portland Creek project is emerging as a strategically significant asset. The integration of structural geology, alteration mapping, and geochemical data is positioning the company to unlock value in a district-scale system that could underpin future resource development.
Bottom Line?
Infini’s Portland Creek drilling is rewriting the uranium playbook in Newfoundland, with assay results and expanded drilling set to define the next phase of discovery.
Questions in the middle?
- Will laboratory assays confirm the high-grade uranium and polymetallic mineralisation indicated by pXRF?
- How extensive and continuous are the uranium-bearing structures along the 6 km anomaly corridor?
- What are the implications of the polymetallic system for project economics and development timelines?